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对2009～2010年采自澜沧江下游的188尾中华鲱鲇(Clupisoma sinensis)进行了年龄与生长的研究。采用耳石、脊椎骨、鳃盖骨、胸鳍棘4种材料对全部样本进行年龄鉴定,耳石年龄鉴定最为准确,4～5月是年轮形成高峰期。渔获种群由1～6龄共6个龄组组成,以1～4龄个体为主。体长与耳石半径呈线性函数关系。体长与体重呈幂函数关系且幂指数接近3,属于匀速生长类型。采用Von Bertalanfy生长方程描述中华鲱鲇的生长特性。中华鲱鲇肥满度随年龄增长逐步升高,在3龄形成高峰。综合中华鲱鲇性成熟系数的变化状况分析中华鲱鲇繁殖期应处于4～8月期间。
The age and growth of 188 Clupisoma sinensis collected from the lower reaches of the Lancang River from 2009 to 2010 were studied. The otolith, spine, opercle and pectoral spine were used to identify all the samples. The earliest identification of otolith was the most accurate, and the peak was formed from April to May. The catch population consisted of 6 age groups from 1 to 6 years old, and individuals mainly from 1 to 4 years old. Body length and otolith radius showed a linear function. Body length and body weight showed a power function and power index close to 3, belong to the type of uniform growth. Von Bertalanfy growth equation was used to characterize the growth characteristics of the Chinese sprat. Sprats fat fullness with age gradually increased, the peak in the third instar. Analysis of the changes of sexual maturity coefficient of Chinese herring 中 Breeding period should be between April and August.